Middle-题目116:224. Basic Calculator
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题目原文:
Implement a basic calculator to evaluate a simple expression string.
The expression string may contain open ( and closing parentheses ), the plus + or minus sign -, non-negative integers and empty spaces .
You may assume that the given expression is always valid.
题目大意:
计算一个表达式的值,包括+,-,和括号还有空格。
题目分析:
这回用eval水过去。
源码:(language:JavaScript)
var calculate = function(s) { return eval(s)};
成绩:
140ms,beats 78.13%,众数176ms,184ms,9.38%
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